题目列表(包括答案和解析)
肼(N2H4)是火箭发动机的燃料,反应时N2O4为氧化剂,生成氮气和水蒸气.已知: N2(g)+2O2(g)=N2O4(g);△H=+8.7kJ/mol N2H4(g)+O2(g)=N2(g)+2H2O(g);△H=-534.0kJ/mol 下列表示肼跟N2O4反应的热化学方程式,正确的是 | |
[ ] | |
A. |
2N2H4(g)+N2O4(g)=3N2(g)+4H2O(g);△H=-542.7kJ/mol |
B. |
2N2H4(g)+N2O4(g)=3N2(g)+4H2O(g);△H=-1059.3kJ/mol |
C. |
2N2H4(g)+N2O4(g)=3N2(g)+4H2O(g);△H=-1076.7kJ/mol |
D. |
N2H4(g)+N2O4(g)=N2(g)+2H2O(g);△H=-1076.7kJ/mol |
N2(g)+2O2(g)====N2O4(g);ΔH=+8.7 kJ·mol-1
N2H4(g)+O2(g) ====N2(g)+2H2O(g);ΔH=-534.0 kJ·mol-1
下列表示肼跟N2O4反应的热化学方程式,正确的是
A.2N2H4(g)+N2O4(g)====3N2(g)+4H2O(g);ΔH=-542.7 kJ·mol-1
B.2N2H4(g)+N2O4(g) ====3N2(g)+4H2O(g);ΔH=-1 059.3 kJ·mol-1
C.2N2H4(g)+N2O4(g) ====3N2(g)+4H2O(g);ΔH=-1 076.7 kJ·mol-1
D.N2H4(g)+N2O4(g)====N2(g)+2H2O(g);ΔH=-1 076.7 kJ·mol-1
肼(N2H4)是火箭发动机的燃料,反应时N2O4为氧化剂,生成氮气和水蒸气。已知:
N2(g)+2O2(g)=N2O4(g);△H=+8.7kJ/mol
N2H4(g)+O2(g)=N2(g)+2H2O(g);△H=-534.0kJ/mol
下列表示肼跟N2O4反应的热化学方程式,正确的是 ( )
A.2N2H4(g)+N2O4(g)=3N2(g)+4H2O(g);△H=-542.7kJ/mol
B.2N2H4(g)+N2O4(g)=3N2(g)+4H2O(g);△H=-1059.3kJ/mol
C.2N2H4(g)+N2O4(g)=3N2(g)+4H2O(g);△H=-1076.7kJ/mol
D.N2H4(g)+N2O4(g)=N2(g)+2H2O(g);△H=-1076.7kJ/mol
肼(N2H4)是火箭发动机的燃料,反应时N2O4为氧化剂,生成氮气和水蒸气。已知:
N2(g)+2O2(g)=N2O4(g);△H=+8.7kJ/mol
N2H4(g)+O2(g)=N2(g)+2H2O(g);△H=-534.0kJ/mol
下列表示肼跟N2O4反应的热化学方程式,正确的是
A.2N2H4(g)+N2O4(g)=3N2(g)+4H2O(g);△H=-542.7kJ/mol
B.2N2H4(g)+N2O4(g)=3N2(g)+4H2O(g);△H=-1059.3kJ/mol
C.2N2H4(g)+N2O4(g)=3N2(g)+4H2O(g);△H=-1076.7kJ/mol
D.N2H4(g)+N2O4(g)=N2(g)+2H2O(g);△H=-1076.7kJ/mol
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